Patent US2805131A successfully refreshed from Google Patents.
US2805131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for production of acetylene and carbon black
Assignee: Phillips Petroleum Co
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Filing: 1954-04-26
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Granted: 1957-09-03
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Expires: 1974-04-26
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mcintire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:47
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/925
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
IN A PROCESS IN WHICH CARBON BLACK IS PRODUCED BY INJECTING A HYDROCARBON INTO THE INTERIOR OF A HELICALLY MOVING MASS OF HOT COMBUSTION GAS WHICH IMPARTS MEAT DIRECTLY TO SAID HYDROCARBON, THUS CAUSING THE FORMATION OF CARBON BLACK AND ACETYLENE, THE IMPROVEMENT WHICH COMPRISES WITHDRAWING FROM A LOCUS UPSTREAM OF THE POINT AT WHICH MIXING OF GAS BECOMES COMPLETE, PART OF THE GAS RESULTING FROM CONTACT OF SAID HOT COMBUSTION GAS WITH SAID HYDROCARBON, SAID GAS AT SAID LOCUS HAVING A HIGHER ACETYLENE CONTENT THAN THE COMPLETELY MIXED GAS AND RECOVERING ACETYLENE FROM THE GAS WITHDRAW.
Claim 2
Dependent Claim
97 words
IN A PROCESS IN WHICH CARBON BLACK IS PRODUCED BY INJECTING A HYDROCARBON INTO THE INTERIOR OF A HELICALLY MOVING MASS OF HOT COMBUSTION GAS WHICH IMPARTS MEAT DIRECTLY TO SAID HYDROCARBON, THUS CAUSING THE FORMATION OF CARBON BLACK AND ACETYLENE, THE IMPROVEMENT WHICH COMPRISES WITHDRAWING FROM A LOCUS UPSTREAM OF THE POINT AT WHICH MIXING OF GAS BECOMES COMPLETE, PART OF THE GAS RESULTING FROM CONTACT OF SAID HOT COMBUSTION GAS WITH SAID HYDROCARBON, SAID GAS AT SAID LOCUS HAVING A HIGHER ACETYLENE CONTENT THAN THE COMPLETELY MIXED GAS AND RECOVERING ACETYLENE FROM THE GAS WITHDRAW.
Claim 3
Dependent Claim
68 words
IN A CARBON BLACK PRODUCTION REACTOR HAVING A SUB STANTIALLY CYLINDRICAL CROSS-SECTION, A LONGITUDINAL INLET AT ONE END, AN OUTLET AT THE OPPOSITE END, AND AT LEAST ONE TANGENTIAL INLET IN A WALL OF SAID REACTOR, THE IMPROVEMENT COMPRISING MEANS FOR WITHDRAWING GAS FROM A LOCUS IN SIAD REACTOR INTERMEDIATE SAID OUTLET AND SAID LONGITUDINAL INLET, AND ACETYLENE RECOVERY MEANS IN COMMUNICATION WITH SAID MEANS FOR WITHDRAWING GAS.
Claim 4
Dependent Claim
68 words
IN A CARBON BLACK PRODUCTION REACTOR HAVING A SUB STANTIALLY CYLINDRICAL CROSS-SECTION, A LONGITUDINAL INLET AT ONE END, AN OUTLET AT THE OPPOSITE END, AND AT LEAST ONE TANGENTIAL INLET IN A WALL OF SAID REACTOR, THE IMPROVEMENT COMPRISING MEANS FOR WITHDRAWING GAS FROM A LOCUS IN SIAD REACTOR INTERMEDIATE SAID OUTLET AND SAID LONGITUDINAL INLET, AND ACETYLENE RECOVERY MEANS IN COMMUNICATION WITH SAID MEANS FOR WITHDRAWING GAS.
References Cited (Backward Citations)
US1839952A
Cited
US2207390A
Cited
US2252955A
Cited
US2368827A
Cited
US2420999A
Cited
US2377245A
Cited
US2443210A
Cited
US2442898A
Cited
US2552277A
Cited
US2606821A
Cited
US2564700A
Cited
US2659663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |